Effective Cross Section
Mostrando 1-12 de 41 artigos, teses e dissertações.
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1. LABORATORY INVESTIGATION OF X-RAY PHOTOLYSIS OF METHANOL ICE AND ITS IMPLICATION ON ASTROPHYSICAL ENVIRONMENTS
Methanol (CH3OH) is one of the most abundant organic molecules in astrophysical environments. It has been found in cold regions such as surfaces of comets, ices near young stellar objects and protoplanetary disks, as well as in the gas phase in different regions in space. In this work, we experimentally simulate the methanol ice and its behavior when irradia
Quím. Nova. Publicado em: 2020-05
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2. Numerical modeling of circular, square and rectangular concrete columns wrapped with FRP under concentric and eccentric load
Resumo Neste artigo é apresentada a modelagem numérica em elementos finitos de pilares com seções transversais circular, quadrada e retangular solicitados por força centrada e excêntrica, reforçados com PRF. O modelo numérico foi calibrado com os resultados experimentais e indicou boa compatibilidade de forças axiais, deformações axiais e deforma�
Rev. IBRACON Estrut. Mater.. Publicado em: 18/07/2019
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3. Optic nerve involvement in ocular toxoplasmosis: 12 year data from a tertiary referral center in Turkey
RESUMO Objetivos: Avaliar a prevalência, características clínicas e tipos de acometimento do nervo óptico em pacientes com toxoplasmose ocular. Métodos: Para este estudo retrospectivo transversal, examinamos todos os pacientes com toxoplasmose ocular ativa encaminhados ao nosso Setor de Uveíte nos últimos 12 anos, e incluímos pacientes com comprome
Arq. Bras. Oftalmol.. Publicado em: 08/04/2019
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4. Numerical analysis of RC plane structures: a concentrated nonlinear effect approach
Abstract The present work aims to study the nonlinear behavior of reinforced concrete structures via Refined Plastic Hinge Method (RPHM). Pseudo-springs are used at the finite element ends, where the gradual loss of stiffness is determined by the combination of the normal force and bending moment (NM) in the cross section. The limiting of the uncracked, ela
Lat. Am. j. solids struct.. Publicado em: 26/04/2018
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5. Numerical Analysis of Twin-Roll Casting of Strips With Profiled Cross-Section
The relatively high production costs of innovative materials with tailored properties such as Tailor Welded Blanks, Patchwork Blanks, Tailor Heat Treated Blanks and Tailor Rolled Blanks are responsible for a growing interest in new cost-effective production methods. One of the promising energy-saving and environmental friendly technologies for the production
Mat. Res.. Publicado em: 16/04/2018
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6. Effect of fluoride dentifrice and casein phosphopeptide-amorphous calcium phosphate cream with and without fluoride in preventing enamel demineralization in a pH cyclic study
Abstract Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) complexes are anticariogenic and capable of remineralizing the early stages of enamel lesions. The use of fluoride prevents dental decay and the association of CPP-ACP with fluoride can increase remineralization. Objective: To evaluate the effect of CPP-ACP and CPP-ACPF creams associated w
J. Appl. Oral Sci.. Publicado em: 2017-12
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7. A Variable-Length Beam Element Incorporating the Effect of Spinning
Abstract This paper proposes a novel variable-length beam element that takes into account the effect of beam spinning. This is the first such beam element of variable length based on the absolute nodal coordinate formulation. In addition to the position and slope vectors, the angles of rotation around the element axis of cross sections that contain two nodes
Lat. Am. j. solids struct.. Publicado em: 2017-08
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8. Temperature field of concrete-filled steel tubular columns in fire
Abstract The composite structures formed by the association of steel profiles with concrete have shown to be an advantageous alternative, improving the behavior of the steel structures concerning their load capacity, stiffness, and durability, under fire conditions. The concrete-filled tubular columns have become an attractive alternative for the civil const
REM, Int. Eng. J.. Publicado em: 2017-06
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9. CHOOSING THE OPTIMAL GEL MORPHOLOGY IN ELECTROPHORESIS SEPARATION BY A DIFFERENTIAL EVOLUTION APPROACH (DEA)
Abstract This paper introduces an effective optimization approach to investigate the morphological effects of nanocomposite gel electrophoresis and operational parameters (see below) by integrating the numerical simulations based on finite element method and population-based search algorithm such as differential evolution. Simulations are performed to study
Braz. J. Chem. Eng.. Publicado em: 2016-03
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10. Effect of low-level laser therapy (808 nm) on skeletal muscle after endurance exercise training in rats
BACKGROUND: Low-level laser therapy (LLLT) has been demonstrated to be effective in optimizing skeletal muscle performance in animal experiments and in clinical trials. However, little is known about the effects of LLLT on muscle recovery after endurance training. OBJECTIVE: This study evaluates the effects of low-level laser therapy (LLLT) applied after
Braz. J. Phys. Ther.. Publicado em: 01/09/2015
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11. Do Foley Catheters Adequately Drain the Bladder? Evidence from CT Imaging Studies
ABSTRACT Introduction: The Foley catheter has been widely assumed to be an effective means of draining the bladder. However, recent studies have brought into question its efficacy. The objective of our study is to further assess the adequacy of Foley catheter for complete drainage of the bladder.
Mater Int. braz j urol.. Publicado em: 2015-06
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12. Finite element implementation for the analysis of 3D steel and composite frames subjected to fire
This paper presents a finite element formulation for the numerical analysis of three-dimensional framed steel, reinforced concrete or composite steel and concrete structures subjected to fire. Several specialized and commercial programs may be used for the analysis of structures in fire condition. Within this context, the purpose of this work is to present t
Lat. Am. j. solids struct.. Publicado em: 2014-01